github.com/google/cadvisor@v0.49.1/container/crio/plugin.go (about)

     1  // Copyright 2019 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package crio
    16  
    17  import (
    18  	"k8s.io/klog/v2"
    19  
    20  	"github.com/google/cadvisor/container"
    21  	"github.com/google/cadvisor/fs"
    22  	info "github.com/google/cadvisor/info/v1"
    23  	"github.com/google/cadvisor/watcher"
    24  )
    25  
    26  // NewPlugin returns an implementation of container.Plugin suitable for passing to container.RegisterPlugin()
    27  func NewPlugin() container.Plugin {
    28  	return &plugin{}
    29  }
    30  
    31  type plugin struct{}
    32  
    33  func (p *plugin) InitializeFSContext(context *fs.Context) error {
    34  	crioClient, err := Client()
    35  	if err != nil {
    36  		return err
    37  	}
    38  
    39  	crioInfo, err := crioClient.Info()
    40  	if err != nil {
    41  		klog.V(5).Infof("CRI-O not connected: %v", err)
    42  	} else {
    43  		context.Crio = fs.CrioContext{Root: crioInfo.StorageRoot, ImageStore: crioInfo.StorageImage, Driver: crioInfo.StorageDriver}
    44  	}
    45  	return nil
    46  }
    47  
    48  func (p *plugin) Register(factory info.MachineInfoFactory, fsInfo fs.FsInfo, includedMetrics container.MetricSet) (watcher.ContainerWatcher, error) {
    49  	err := Register(factory, fsInfo, includedMetrics)
    50  	return nil, err
    51  }